Manchester United have won the League title in style before at Upton Park.

And while yesterday’s 4-2 triumph was not the clinching moment this time around, it’s hard to see Sir Alex Ferguson’s team being overtaken at the summit of the Premier League.

They had the look of champions as they impressively fought back to outclass relegation-haunted West Ham.

In taking his personal goal tally past the ton mark and on to 101, Wayne Rooney saw the visitors overwhelm West Ham’s 2-0 ­half-time lead.

In fact, in a sensational 19 minutes salvo Fergie’s men turned a 2-0 ­defeat into a 4-2 victory.

They finished the day seven points clear at the top following Arsenal’s goalless draw against Blackburn Rovers at the Emirates.

Just when Fergie’s pacesetters have discovered their most ­competitive instincts, the Gunners have been found wanting.

Arsene Wenger’s team still pose the most likely threat to United and their ambitions to set a new English record of 19 league titles.

Back in 1967, Matt Busby’s team won 6-1 at West Ham to clinch the championship. Those were the days of Best, Law and Charlton.

Going for the attacking jugular was part of their football DNA.

And yesterday Fergie revealed how he inspired this fightback using traditional United values.

He said: “It was a real ­championship performance as far as I’m concerned.

“I said to them at half-time: ‘Look, goal difference doesn’t matter now – you’re getting something from this game. The next goal wins the game’.

“That’s why I put Ryan (Giggs) back to left-back to have a go and just attack.

“It paid dividends and I’m pleased with that.”

Ferguson added: “They’ve got the ability to turn it around – that’s the first thing.

“But they’ve got great faith in themselves, faith in the team, faith in their team-mates.

“It doesn’t always work but you can rest assured, they keep trying to create and play their football, and in the second half we dominated.”

Ferguson, who confirmed ­goalkeeper Edwin van der Sar was not risked due to a groin injury ahead of Wednesday’s Champions League clash with Chelsea at ­Stamford Bridge, felt yesterday’s win would hit United’s title rivals hard.

He added: “It makes an impact on us. Seven games left. You can count the games down one by one.